Section E - Hydraulics
Transmission Pumps
Dismantling and Assembly
E - 73 E - 73
9803-9450-2
Note: The conical spring must be correctly retained on the
relief valve to ensure satisfactory pump operation.
7 Refit plug 10 and torque tighten to 68 Nm (50 lbf ft).
Charge Valve
Dismantling and Assembly
1 Mark the plug 17, locknut 16 and the pump body so
as to approximately maintain the original adjustment.
2 Loosen locknut 16 and unscrew plug 17 from pump
body. Remove ‘O’ ring 18 and discard.
3 Remove spring 19 and poppet 20 from pump body.
4 Inspect poppet 20 and mating seat in pump body for
damage. Renew as necessary.
5 Install a new ‘O’ ring 18 on plug 17.
6 Fit poppet 20 and spring 19 into pump body.
7 Screw plug 17 complete with locknut 16 into pump
body to align with the marks made during
disassembly. Tighten the locknut.
8 Check the charge pressure and adjust as necessary.
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